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  • 1.  How to change icon in MDI Parent

    Posted Sep 24, 2014 04:16 AM

    I found a cpp source code to change the icon of the MDI parent. I use it related to change company (library list) by user selection. And it works when I had full path to icon object.  But I need to reset to orginal icon f.i. when company record has an empty value in path for icon.

     

    CWnd *pWnd = ObPanelAPI::GetPanelCWndByName("*Current");
if (pWnd){
       // loads from file
       HICON hIcon = (HICON)LoadImage(0, &(1:), IMAGE_ICON, 0 , 0 ,LR_DEFAULTSIZE|LR_LOADFROMFILE);
       // TODO: Set orginal icon if LoadImage returns NULL
       if(hIcon) {
             // send the message to frame to update icon
             HICON hPrevIcon = (HICON) pWnd->SetIcon(hIcon,FALSE);
             if(hPrevIcon) {
                    // Free the previous icon resource
                    DestroyIcon(hPrevIcon);
             }
       }
}

     

    But I cant find out how to get the orginal icon from the EXE object  f.i. OBicon.ico.

    Last try was like this: 

    CWnd *pWnd = ObPanelAPI::GetPanelCWndByName("*Current");
if (pWnd){
       // loads from file
       HICON hIcon = (HICON)LoadImage(0, &(1:), IMAGE_ICON, 0 , 0 ,LR_DEFAULTSIZE|LR_LOADFROMFILE);
       if (!hIcon) {
              HICON hIcon = AfxGetApp()->LoadIcon(128);
             // eða ef IDE_MAINFRAME finnst ekki HICON hIcon = AfxGetApp()->LoadIcon(128);
             if (!hIcon) 
                    MessageBox(NULL,"from Exe in error","msg1", MB_OK); 
       }
       if(hIcon) {
             // send the message to frame to update icon
             HICON hPrevIcon = (HICON) pWnd->SetIcon(hIcon,FALSE);
             if(hPrevIcon) {
                    // Free the previous icon resource
                    DestroyIcon(hPrevIcon);
             }
       }
}


  • 2.  Re: How to change icon in MDI Parent

    Posted Sep 30, 2014 12:28 PM

    Any suggestions?

     

    GUNNAR GUNNARSSON wrote:

     

    I found a cpp source code to change the icon of the MDI parent. I use it related to change company (library list) by user selection. And it works when I had full path to icon object.  But I need to reset to orginal icon f.i. when company record has an empty value in path for icon.

     

    1. CWnd *pWnd = ObPanelAPI::GetPanelCWndByName("*Current"); 
    2. if (pWnd){ 
    3.        // loads from file 
    4.        HICON hIcon = (HICON)LoadImage(0, &(1:), IMAGE_ICON, 0 , 0 ,LR_DEFAULTSIZE|LR_LOADFROMFILE); 
    5.        // TODO: Set orginal icon if LoadImage returns NULL 
    6.        if(hIcon) { 
    7.              // send the message to frame to update icon 
    8.              HICON hPrevIcon = (HICON) pWnd->SetIcon(hIcon,FALSE); 
    9.              if(hPrevIcon) { 
    10.                     // Free the previous icon resource 
    11.                     DestroyIcon(hPrevIcon); 
    12.              } 
    13.        } 
    14. } 

     

    But I cant find out how to get the orginal icon from the EXE object  f.i. OBicon.ico.

    Last try was like this:

    1. CWnd *pWnd = ObPanelAPI::GetPanelCWndByName("*Current"); 
    2. if (pWnd){ 
    3.        // loads from file 
    4.        HICON hIcon = (HICON)LoadImage(0, &(1:), IMAGE_ICON, 0 , 0 ,LR_DEFAULTSIZE|LR_LOADFROMFILE); 
    5.        if (!hIcon) { 
    6.               HICON hIcon = AfxGetApp()->LoadIcon(128); 
    7.              // eða ef IDE_MAINFRAME finnst ekki HICON hIcon = AfxGetApp()->LoadIcon(128); 
    8.              if (!hIcon)  
    9.                     MessageBox(NULL,"from Exe in error","msg1", MB_OK);  
    10.        } 
    11.        if(hIcon) { 
    12.              // send the message to frame to update icon 
    13.              HICON hPrevIcon = (HICON) pWnd->SetIcon(hIcon,FALSE); 
    14.              if(hPrevIcon) { 
    15.                     // Free the previous icon resource 
    16.                     DestroyIcon(hPrevIcon); 
    17.              } 
    18.        } 
    19. } 


  • 3.  Re: How to change icon in MDI Parent
    Best Answer

    Posted Oct 01, 2014 02:44 AM

    To restore the original icon you have to load the icon included in the resource, IDI_EXE_ICON.

    Here you have the the source code to restore both, small and big icon:

     

    #include "obrc.h"


{
     CWnd *pWnd = ObPanelAPI::GetPanelCWndByName("*Current");
     ASSERT(pWnd);
     if(pWnd) {
          HICON hIcon = NULL;

          hIcon = (HICON) LoadImage(GetModuleHandle(NULL), 
                                   MAKEINTRESOURCE(IDI_EXE_ICON),
                                   IMAGE_ICON,
                                   GetSystemMetrics(SM_CXICON) ,
                                   GetSystemMetrics(SM_CYICON) ,
                                   0);
     if(hIcon) {
          // send the message to frame to update the large icon
          HICON hPrevIcon = (HICON) pWnd->SetIcon(hIcon,TRUE);
          if(hPrevIcon) {
               // Free the previous icon resource
               DestroyIcon(hPrevIcon);
          }
     }


     hIcon = (HICON) LoadImage(GetModuleHandle(NULL), 
                               MAKEINTRESOURCE(IDI_EXE_ICON),
                               IMAGE_ICON,
                               GetSystemMetrics(SM_CXSMICON) ,
                               GetSystemMetrics(SM_CYSMICON) ,
                               0);
     if(hIcon) {
          // send the message to frame to update the small icon
          HICON hPrevIcon = (HICON) pWnd->SetIcon(hIcon,FALSE);
          if(hPrevIcon) {
               // Free the previous icon resource
               DestroyIcon(hPrevIcon);
          }
     }
}

     

    Elvis Stokovac



  • 4.  Re: How to change icon in MDI Parent

    Posted Oct 01, 2014 05:33 AM

    Thank you Elvis,

    This works as planed now. 

     

    I remembered where I "stole" the change icon source code : Changing a panel's icon at runtime - The CA Plex Wiki



  • 5.  Re: How to change icon in MDI Parent

    Posted Oct 01, 2014 05:44 AM

    I'm glad that helped you,

    Thanks for the feedback.

     

    Elvis Stokovac